Anime Expo 2016
Los Angeles Convention Center, 1201 South Figueroa Street, Los Angeles, CA 90015
Registration is now open: http://www.anime-expo.org/registration/
Some folks from RobotechX will probably be gathering there: http://www.robotechx.com/forum/23-robotech-events-calendar/21137-anime-expo-2016-los-angeles-ca.html